croupier

noun

1. The person who collects bets and pays out winnings at a gambling table, such as in a casino.

   “As a matter of fact, the mob was playing in exceedingly foul fashion. Indeed, I have an idea that sheer robbery was going on around that gaming-table. The croupiers who sat at the two ends of it had not only to watch the stakes, but also to calculate the game—an immense amount of work for two men! As for the crowd itself—well, it consisted mostly of Frenchmen.”

2. One who, at a public dinner party, sits at the lower end of the table as assistant chairman.